Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength stemming for smelting tap hole of super-huge blast furnace
The invention provides high-strength stemming for smelting a tap hole of a super-huge blast furnace. The high-strength stemming comprises the following components in percentage by weight: 15-30% of fused alumina; 5-25% of alumina; 5-20% of silicon carbide; 15-25% of ferro-silicon nitride; 15-30% of a composite carbon material; 3-7% of composite refractory material micro powder; and 1-5% of a composite expanding agent. Compared with the prior art, the stemming provided by the invention has the advantages of high strength and stable high-temperature volume; the iron notch depth is good, the tapping time is long, and the erosion and erosion resistance is good.
本发明提供一种高强度冶炼特大型高炉出铁口用炮泥，其组分按重量百分计为：电熔刚玉15～30％；矾土5～25％；碳化硅5～20％；氮化硅铁15～25％；复合碳素材料15～30％；复合耐火材料微粉3～7％；复合膨胀剂1～5％。与现有技术相比，本发明提供的炮泥具有强度高、高温体积稳定；铁口深度好，出铁时间长，抗侵蚀冲刷性能好的特点。
High-strength stemming for smelting tap hole of super-huge blast furnace
The invention provides high-strength stemming for smelting a tap hole of a super-huge blast furnace. The high-strength stemming comprises the following components in percentage by weight: 15-30% of fused alumina; 5-25% of alumina; 5-20% of silicon carbide; 15-25% of ferro-silicon nitride; 15-30% of a composite carbon material; 3-7% of composite refractory material micro powder; and 1-5% of a composite expanding agent. Compared with the prior art, the stemming provided by the invention has the advantages of high strength and stable high-temperature volume; the iron notch depth is good, the tapping time is long, and the erosion and erosion resistance is good.
本发明提供一种高强度冶炼特大型高炉出铁口用炮泥，其组分按重量百分计为：电熔刚玉15～30％；矾土5～25％；碳化硅5～20％；氮化硅铁15～25％；复合碳素材料15～30％；复合耐火材料微粉3～7％；复合膨胀剂1～5％。与现有技术相比，本发明提供的炮泥具有强度高、高温体积稳定；铁口深度好，出铁时间长，抗侵蚀冲刷性能好的特点。
High-strength stemming for smelting tap hole of super-huge blast furnace
高强度冶炼特大型高炉出铁口用炮泥
ZHANG LINGKAI (Autor:in)
21.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021